Here are two iconic structures from george's assets that look evil in ortho projection:


The reason some engine effects don't align up in all rotations is because the ships are rendered in perspective view and that leads to some approximation of the exhausts when they rotate. Orthographic rendered assets would solve that problem, but would look weird to people who are used to the traditional perspective.
In other news I discovered this while rendering and importing the britannia to the game. Also released it as a playership:
http://xelerus.de/index.php?s=mod&id=960
